Fine-scale structures as spots of increased fish concentration in the open ocean
International audience Oceanic frontal zones have been shown to deeply influence the distribution of primary producers and, at the other extreme of the trophic web, top predators. However, the relationship between these structures and intermediate trophic levels is much more obscure. In this paper w...
Published in: | Scientific Reports |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Subjects: | |
Online Access: | https://hal.science/hal-02431907 https://hal.science/hal-02431907/document https://hal.science/hal-02431907/file/baud1.pdf https://doi.org/10.1038/s41598-021-94368-1 |
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ftunivrochelle:oai:HAL:hal-02431907v1 |
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openpolar |
institution |
Open Polar |
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HAL - Université de La Rochelle |
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ftunivrochelle |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Baudena, Alberto Ser-Giacomi, Enrico d'Onofrio, Donatella Capet, Xavier Cotté, Cédric Cherel, Yves d'Ovidio, Francesco Fine-scale structures as spots of increased fish concentration in the open ocean |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Oceanic frontal zones have been shown to deeply influence the distribution of primary producers and, at the other extreme of the trophic web, top predators. However, the relationship between these structures and intermediate trophic levels is much more obscure. In this paper we address this knowledge gap by comparing acoustic measurements of mesopelagic fish concentrations to satellite-derived fine-scale Lagrangian Coherent Structures in the Indian sector of the Southern Ocean. First, we demonstrate that higher fish concentrations occur more frequently in correspondence with strong Lagrangian Coherent Structures. Secondly, we illustrate that, while increased fish densities are more likely to be observed over these structures, the presence of a fine-scale feature does not imply a concomitant fish accumulation, as other factors affect fish distribution. Thirdly, we show that, when only chlorophyll-rich waters are considered, front intensity modulates significantly more the local fish concentration. Finally, we discuss a model representing fish movement along Lagrangian features, specifically built for mid-trophic levels. Its results, obtained with realistic parameters, are qualitatively consistent with the observations and the spatio-temporal scales analysed. Overall, these findings may help to integrate intermediate trophic levels in trophic models, which can ultimately support management and conservation policies. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Department of Earth, Atmospheric and Planetary Sciences MIT, Cambridge (EAPS) Massachusetts Institute of Technology (MIT) CNR Institute of Atmospheric Sciences and Climate (ISAC) National Research Council of Italy Copernicus Institute of Sustainable Development, Environmental Sciences, Faculty of Geosciences Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) CNES/TOSCA project LAECOS and BIOS-WOT ANR-11-BSV7-0022,MyctO-3D-MAP,Distribution et habitats en trois dimensions des poissons-lanternes: utilisation conjointe de données fournies par leurs prédateurs, l'écho-intégration et la modélisation(2011) ANR-17-EURE-0006,IPSL-CGS,IPSL Climate graduate school(2017) |
format |
Article in Journal/Newspaper |
author |
Baudena, Alberto Ser-Giacomi, Enrico d'Onofrio, Donatella Capet, Xavier Cotté, Cédric Cherel, Yves d'Ovidio, Francesco |
author_facet |
Baudena, Alberto Ser-Giacomi, Enrico d'Onofrio, Donatella Capet, Xavier Cotté, Cédric Cherel, Yves d'Ovidio, Francesco |
author_sort |
Baudena, Alberto |
title |
Fine-scale structures as spots of increased fish concentration in the open ocean |
title_short |
Fine-scale structures as spots of increased fish concentration in the open ocean |
title_full |
Fine-scale structures as spots of increased fish concentration in the open ocean |
title_fullStr |
Fine-scale structures as spots of increased fish concentration in the open ocean |
title_full_unstemmed |
Fine-scale structures as spots of increased fish concentration in the open ocean |
title_sort |
fine-scale structures as spots of increased fish concentration in the open ocean |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-02431907 https://hal.science/hal-02431907/document https://hal.science/hal-02431907/file/baud1.pdf https://doi.org/10.1038/s41598-021-94368-1 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.science/hal-02431907 Scientific Reports, 2021, 11, pp.15805. ⟨10.1038/s41598-021-94368-1⟩ https://www.nature.com/articles/s41598-021-94368-1 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-021-94368-1 hal-02431907 https://hal.science/hal-02431907 https://hal.science/hal-02431907/document https://hal.science/hal-02431907/file/baud1.pdf doi:10.1038/s41598-021-94368-1 WOS: 000684831600003 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41598-021-94368-1 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
_version_ |
1799467357818585088 |
spelling |
ftunivrochelle:oai:HAL:hal-02431907v1 2024-05-19T07:48:57+00:00 Fine-scale structures as spots of increased fish concentration in the open ocean Baudena, Alberto Ser-Giacomi, Enrico d'Onofrio, Donatella Capet, Xavier Cotté, Cédric Cherel, Yves d'Ovidio, Francesco Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Department of Earth, Atmospheric and Planetary Sciences MIT, Cambridge (EAPS) Massachusetts Institute of Technology (MIT) CNR Institute of Atmospheric Sciences and Climate (ISAC) National Research Council of Italy Copernicus Institute of Sustainable Development, Environmental Sciences, Faculty of Geosciences Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) CNES/TOSCA project LAECOS and BIOS-WOT ANR-11-BSV7-0022,MyctO-3D-MAP,Distribution et habitats en trois dimensions des poissons-lanternes: utilisation conjointe de données fournies par leurs prédateurs, l'écho-intégration et la modélisation(2011) ANR-17-EURE-0006,IPSL-CGS,IPSL Climate graduate school(2017) 2021 https://hal.science/hal-02431907 https://hal.science/hal-02431907/document https://hal.science/hal-02431907/file/baud1.pdf https://doi.org/10.1038/s41598-021-94368-1 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-021-94368-1 hal-02431907 https://hal.science/hal-02431907 https://hal.science/hal-02431907/document https://hal.science/hal-02431907/file/baud1.pdf doi:10.1038/s41598-021-94368-1 WOS: 000684831600003 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.science/hal-02431907 Scientific Reports, 2021, 11, pp.15805. ⟨10.1038/s41598-021-94368-1⟩ https://www.nature.com/articles/s41598-021-94368-1 [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2021 ftunivrochelle https://doi.org/10.1038/s41598-021-94368-1 2024-04-24T00:36:21Z International audience Oceanic frontal zones have been shown to deeply influence the distribution of primary producers and, at the other extreme of the trophic web, top predators. However, the relationship between these structures and intermediate trophic levels is much more obscure. In this paper we address this knowledge gap by comparing acoustic measurements of mesopelagic fish concentrations to satellite-derived fine-scale Lagrangian Coherent Structures in the Indian sector of the Southern Ocean. First, we demonstrate that higher fish concentrations occur more frequently in correspondence with strong Lagrangian Coherent Structures. Secondly, we illustrate that, while increased fish densities are more likely to be observed over these structures, the presence of a fine-scale feature does not imply a concomitant fish accumulation, as other factors affect fish distribution. Thirdly, we show that, when only chlorophyll-rich waters are considered, front intensity modulates significantly more the local fish concentration. Finally, we discuss a model representing fish movement along Lagrangian features, specifically built for mid-trophic levels. Its results, obtained with realistic parameters, are qualitatively consistent with the observations and the spatio-temporal scales analysed. Overall, these findings may help to integrate intermediate trophic levels in trophic models, which can ultimately support management and conservation policies. Article in Journal/Newspaper Southern Ocean HAL - Université de La Rochelle Scientific Reports 11 1 |